Home / 192,507.02-288,809.74-74,146.58

Finding the Fourth Proportional to 192,507.02, 288,809.74 and 74,146.58

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Solution

The fourth proportional to 192,507.02, 288,809.74 and 74,146.58 is: 111,238.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,507.02 : 288,809.74 = 74,146.58 : x
  2. Step 2: Convert to fraction form
    192,507.02/288,809.74 = 74,146.58/x
  3. Step 3: Cross multiply
    192,507.02x = 288,809.74 × 74,146.58
  4. Step 4: Simplify right side
    192,507.02x = 21,414,254,491.69
  5. Step 5: Solve for x
    x = 21,414,254,491.69/192,507.02
  6. Step 6: Final answer
    x = 111,238.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.